Do diesel fuel additives really work, or are they just expensive snake oil? With diesel prices remaining painfully high, improving fuel economy, reducing regens and protecting expensive emissions equipment could make a meaningful difference for diesel truck owners.

In this video, Tim Esterdahl speaks with Power Service Products chemist Jessica Crabtree about how diesel fuel additives are tested and what they can potentially do inside a modern diesel engine.

Crabtree explains how detergents can clean diesel injectors, improve combustion and reduce soot traveling through the EGR, turbocharger and diesel particulate filter. She also discusses preliminary testing involving eight 3.0-liter Duramax diesel trucks that has shown an average fuel economy improvement of approximately 15%. That field trial is still underway, and individual results can vary considerably.

The conversation also covers:

How quickly dirty diesel injectors can be cleaned
Whether additives can reduce DPF regeneration frequency
Potential reductions in DEF consumption
How additives affect the EGR and turbocharger
Why older diesel trucks may show larger improvements
The difference between laboratory testing and YouTube garage testing
A Peterbilt case study that improved from 5.9 to 8 mpg

Power Service Products did not pay for this video, and Pickup Truck Plus SUV Talk does not receive commissions or kickbacks from product sales.

Have you used a diesel fuel additive? Let us know what product you used and whether you noticed better fuel economy, fewer regens or any other improvement.

#DieselTruck #DieselAdditive #Duramax #DieselFuel #TruckMaintenance

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The Subaru Forester has earned a reputation as a sensible, dependable SUV, but owners and used-vehicle shoppers still have several known problems to consider.

In this video, we examine the recalls, technical service bulletins, and frequently reported issues affecting 2019-2026 Subaru Forester models. These concerns range from dead batteries and frozen infotainment screens to CVT warranty extensions, thermal control valve failures, and moonroof glass that may not have been properly bonded to the vehicle.

The good news is that the Forester does not appear to suffer from widespread catastrophic engine or transmission failures. Many of these problems are also covered by recalls or extended warranties, but owners need to know what to ask about.

Read the full list of 2019-2026 Subaru Forester known problems, recalls, and service bulletins at Pickup Truck Talk:
https://pickuptrucktalk.com/2026/07/2019-2026-subaru-forester-known-problems-fuel-leak-moonroof-flight-transmission-tsb-infotainment-glitches/
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You can also check your specific vehicle for open recalls by entering its VIN at NHTSA.gov.

Would these problems prevent you from buying a Subaru Forester, or do they seem typical for a modern SUV? Let us know in the comments.

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#SubaruForester #SubaruProblems #SUVReliability #UsedSUV #PickupTruckTalk